osfmk/vm/vm_init.c

   1 /*
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  28 /*
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  30  */
  31 /*
  32  * Mach Operating System
  33  * Copyright (c) 1991,1990,1989,1988,1987 Carnegie Mellon University
  34  * All Rights Reserved.
  35  *
  36  * Permission to use, copy, modify and distribute this software and its
  37  * documentation is hereby granted, provided that both the copyright
  38  * notice and this permission notice appear in all copies of the
  39  * software, derivative works or modified versions, and any portions
  40  * thereof, and that both notices appear in supporting documentation.
  41  *
  42  * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
  43  * CONDITION.  CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR
  44  * ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
  45  *
  46  * Carnegie Mellon requests users of this software to return to
  47  *
  48  *  Software Distribution Coordinator  or  Software.Distribution@CS.CMU.EDU
  49  *  School of Computer Science
  50  *  Carnegie Mellon University
  51  *  Pittsburgh PA 15213-3890
  52  *
  53  * any improvements or extensions that they make and grant Carnegie Mellon
  54  * the rights to redistribute these changes.
  55  */
  56 /*
  57  */
  58 /*
  59  *      File:   vm/vm_init.c
  60  *      Author: Avadis Tevanian, Jr., Michael Wayne Young
  61  *      Date:   1985
  62  *
  63  *      Initialize the Virtual Memory subsystem.
  64  */
  65
  66 #include <mach/machine/vm_types.h>
  67 #include <kern/zalloc.h>
  68 #include <kern/kalloc.h>
  69 #include <vm/vm_object.h>
  70 #include <vm/vm_map.h>
  71 #include <vm/vm_page.h>
  72 #include <vm/vm_kern.h>
  73 #include <vm/memory_object.h>
  74 #include <vm/vm_fault.h>
  75 #include <vm/vm_init.h>
  76
  77 #include <pexpert/pexpert.h>
  78
  79 #include <vm/vm_protos.h>
  80
  81 #define ZONE_MAP_MIN CONFIG_ZONE_MAP_MIN
  82
  83 /* Maximum zone size is 1.5G */
  84 #define ZONE_MAP_MAX (1024 * 1024 * 1536)
  85
  86 const vm_offset_t vm_min_kernel_address = VM_MIN_KERNEL_ADDRESS;
  87 const vm_offset_t vm_max_kernel_address = VM_MAX_KERNEL_ADDRESS;
  88
  89 boolean_t vm_kernel_ready = FALSE;
  90
  91 /*
  92  *      vm_mem_bootstrap initializes the virtual memory system.
  93  *      This is done only by the first cpu up.
  94  */
  95
  96 void
  97 vm_mem_bootstrap(void)
  98 {
  99         vm_offset_t     start, end;
 100         vm_size_t zsizearg;
 101         mach_vm_size_t zsize;
 102
 103         /*
 104          *      Initializes resident memory structures.
 105          *      From here on, all physical memory is accounted for,
 106          *      and we use only virtual addresses.
 107          */
 108 #define vm_mem_bootstrap_kprintf(x)
 109
 110         vm_mem_bootstrap_kprintf(("vm_mem_bootstrap: calling vm_page_bootstrap\n"));
 111         vm_page_bootstrap(&start, &end);
 112
 113         /*
 114          *      Initialize other VM packages
 115          */
 116
 117         vm_mem_bootstrap_kprintf(("vm_mem_bootstrap: calling zone_bootstrap\n"));
 118         zone_bootstrap();
 119
 120         vm_mem_bootstrap_kprintf(("vm_mem_bootstrap: calling vm_object_bootstrap\n"));
 121         vm_object_bootstrap();
 122
 123         vm_kernel_ready = TRUE;
 124
 125         vm_mem_bootstrap_kprintf(("vm_mem_bootstrap: calling vm_map_int\n"));
 126         vm_map_init();
 127
 128         vm_mem_bootstrap_kprintf(("vm_mem_bootstrap: calling kmem_init\n"));
 129         kmem_init(start, end);
 130
 131         vm_mem_bootstrap_kprintf(("vm_mem_bootstrap: calling pmap_init\n"));
 132         pmap_init();
 133
 134         if (PE_parse_boot_arg("zsize", &zsizearg))
 135                 zsize = zsizearg * 1024ULL * 1024ULL;
 136         else {
 137                 zsize = sane_size >> 2;                         /* Get target zone size as 1/4 of physical memory */
 138         }
 139
 140         if(zsize < ZONE_MAP_MIN) zsize = ZONE_MAP_MIN;  /* Clamp to min */
 141         if(zsize > ZONE_MAP_MAX) zsize = ZONE_MAP_MAX;  /* Clamp to max */
 142
 143         vm_mem_bootstrap_kprintf(("vm_mem_bootstrap: calling zone_init\n"));
 144         zone_init(zsize);                                               /* Allocate address space for zones */
 145
 146         vm_mem_bootstrap_kprintf(("vm_mem_bootstrap: calling kalloc_init\n"));
 147         kalloc_init();
 148
 149         vm_mem_bootstrap_kprintf(("vm_mem_bootstrap: calling vm_fault_init\n"));
 150         vm_fault_init();
 151
 152         vm_mem_bootstrap_kprintf(("vm_mem_bootstrap: calling vm_page_module_init\n"));
 153         vm_page_module_init();
 154
 155         vm_mem_bootstrap_kprintf(("vm_mem_bootstrap: calling memory_manager_default_init\n"));
 156         memory_manager_default_init();
 157
 158         vm_mem_bootstrap_kprintf(("vm_mem_bootstrap: calling meory_object_control_bootstrap\n"));
 159         memory_object_control_bootstrap();
 160
 161         vm_mem_bootstrap_kprintf(("vm_mem_bootstrap: calling device_pager_bootstrap\n"));
 162         device_pager_bootstrap();
 163
 164         vm_paging_map_init();
 165
 166         vm_mem_bootstrap_kprintf(("vm_mem_bootstrap: done\n"));
 167 }
 168
 169 void
 170 vm_mem_init(void)
 171 {
 172         vm_object_init();
 173 }